Not really any animals can survive with sudden changes like floods, fires, and volcanoes, and other natural events .Their food could be wiped out and they could lose shelter and other things that they need to survive.Sometimes people build cities on land that the animals need to survive.Some changes that are in small areas sometimes don’t do a lot but if it is a really large area it can affect the entire world.In the past 200 years many animals have been extinct and hundreds of other species are very close to become extinct.Some laws help protect animals and that helps some animals but it doesn't help some of them and some zoos help animals repopulate.